to 277 °C at Mach 2.7. Much of the aircraft was to be composed of a stainless steel brazed-honeycomb structure. Fuel onboard had the additional role of serving as a heat sink, and a fully duplicated freon-based refrigeration system provided by Normalair was also present. During development, the Avro 730 underwent re-design work so that it could perform as a bomber as well as a reconnaissance platform. Although the new version looked much like the original, it was larger overall and featured a new wing planform. In order to increase wing area, extra "winglettes" were added outside of the engine pods and the entire planform was re-shaped to be more of a classic delta wing. The wing inside the engine pods, about ⅔ of the overall span, was swept at about 45°, the smaller area outboard of the engine was more highly swept at about 60°. The forward sweep on the trailing edge was removed. The engine pods were now specified to carry four Armstrong-Siddeley P.176 engines each, for a total of eight. The pods were circular at the front and mounted a single large shock cone, and grew progressively more "square" to the rear, where they ended flush with the rear of the wing. Much of the layout was generally the same as the earlier version, with the rectangular canards, "hidden" cockpit and large cropped-delta vertical fin at the rear. In the new version, the crew was reduced to two members. The bomb bay was narrow but very long at 50 ft (15 m), and was intended to be armed with a nuclear-tipped stand-off missile. A suitable warhead had started development as Blue Rosette. Specifications See also References Citations Bibliography Bartlett, Christopher John. "The Long Retreat: A Short History of British Defence Policy, 1945-70". Macmillan, 1971. Brookes, Andrew J. "V-Force: The History of Britain's Airborne Deterrent ". Jane's, 1982. Bud, Robert and Philip Gummett. "Cold War, Hot Science: Applied Research in Britain's Defence Laboratories, 1945-1990". NMSI Trading Ltd, 2002. . Buttler, Tony. "British Secret Projects: Jet Bombers Since 1949". Midland, 2003. . Lewis, Peter M. H. "The British Bomber Since 1914: Sixty-Five Years of Design and Development". Putnam, 1980. . Polmar, Norman. "Spyplane: The U-2 History Declassified". Zenith Imprint, 2001. . Wood, Derek. Project Cancelled. Macdonald and Jane's Publishers, 1975. . External links Avro 730 Bomber (1956) FAS.org Virtual RAF Cancelled military aircraft projects of the United Kingdom 730